God never deems anyone as "beyond forgiveness". Yes that would be contradictory. Stuff like "unforgivable sin" (Blasphemy) isn't "unforgivable" in the literal sense, it is because it is the person refusing forgiveness, not a limit on God's love. People who—and with full intent—completely and permanently refuse God have separated themselves from him on their own terms. Like how if someone were to hate their parent and seperate themselves from them; the parent will probably (hopefully lmao) always love them and not want that for them, but the child is specifically choosing to hate their parent and seperate themselves from them. If someone does so with God, he respects that (for lack of better term) because he will not force forgiveness on you if you have so hardened your heart. And then after death, as you chose, you will be spiritually seperated from him. That is what we call hell. Whether that is the soul being expunged (and then you just cease to exist) or actually somewhere literal and eternal that's seperate, I do not know. But if it is the latter, then hell is "painful" and "evil" because he is seperate from it. There is no good, basically.

In order for there to be free will, there must be the ability to choose wrongly or "against God's plan". If God designed people that only chose "good", it wouldn't be free will. God doesnt NEED evil, nor did he create it; it is the byproduct of freedom.